WASHINGTON Labor shortages that left crops rotting in fields have farm organizations backing a Senate immigration proposal that would treat workers in agriculture differently from those in other industries.

The American Farm Bureau Federation, the United Farm Workers, and fruit and vegetable growers said they’ve been involved in discussions with lawmakers in crafting the first serious attempt to revamp immigration law since 2007. A bipartisan group of eight senators on Monday unveiled a statement of principles for the plan, which acknowledges the need to maintain an adequate food supply.

“We appreciate the Senate’s recognition of agriculture’s unique needs,” said Kristi Boswell, a labor analyst for the Farm Bureau. “We’re working for a program that works for the strawberry grower in California and the dairies in the Midwest and the apple grower in upstate New York.”

The plan includes a path to citizenship for some of the nation’s 11 million undocumented immigrants, including workers in agriculture, which relies on illegal labor more than any other industry. About 25 percent of the farm workforce is unauthorized, according to a 2009 study by the Pew Hispanic Center, with heavy concentrations in the fruit and vegetable sector.

Acute labor shortage

Low-wage, backbreaking jobs in orchards and on farms and ranches tend to be unattractive to U.S. citizens yet draw immigrants who often become highly skilled at the tasks, Boswell said. The Farm Bureau is the largest U.S. farmer group.

Because of the current immigration policy, growers can’t be certain enough workers will be available at harvest, she said.

A California Farm Bureau study last year found that 71 percent of tree-fruit growers and almost 80 percent of raisin and berry growers couldn’t find enough workers to prune trees or vines or pick the crops.

Food imports fill the gap

The situation has prompted food companies to turn for their supplies to Brazil, Mexico and other countries where the labor force is more reliable, said Ken Barbic, a spokesman with the Western Growers Association, which represents fruit and vegetable producers.

Unlike some immigrant-reliant industries, agriculture is competing in a global market, he said.

The senators justify special treatment for agricultural workers by citing the need for an adequate domestic food supply. Farmworkers “will earn a path to citizenship through a different process under our new agricultural worker program,” according to their statement of principles.

Group opposes plan

Any proposal to grant legal status to farmworkers will boomerang by giving those workers access to nonfarm jobs they will then fill, opening up agriculture to a new wave of undocumented immigrants, said Ira Mehlman, a spokesman with the Federation for American Immigration Reform, a Washington-based group opposed to the proposal. Undocumented workers are less a function of poor policy than the industry’s economics, he said.

Legislation won’t change the circumstances – including low wages and poor work conditions – that led illegal workers to fill farm jobs, he said. “Agriculture relies on manual labor because it’s cheap.”